Summary:
The issue here is that sometimes `this.options()` is not `[options]` but contains different stuff, esp. if your command accepts arguments.
This commit reverts its original behaviour and passes custom `examples` property that we use instead.
Tested, can be shipped right away.
Differential Revision: D3662179
fbshipit-source-id: 4b2af3487464d46e2007388230e675ce3575f797